Teigha.GraphicsSystem.Device Error

uncle
uncle
in Programming and customization

I tried to run the code in the blog below, but I get a 'System.AccessViolationException' error at dev.Add (view); (Line 140)
In AutoCAD it runs fine.
Is there any workaround?
https://through-the-interface.typepad.com/through_the_interface/2007/04/taking_a_snapsh_1.html

Comments

  • mdelanno
    mdelanno 
    [CommandMethod("TESTDEV", CommandFlags.Modal)]
public void TestDevice()
{
    Document document = Application.DocumentManager.MdiActiveDocument;
    Manager manager = document.GraphicsManager;
    using Device device = manager.CreateAutoCADOffScreenDevice();
    using View view = device.CreateView();
    device.Add(view);
    device.OnSize(new Size(800, 600));
    var p0 = new Point3d(0, 0, 0);
    var p1 = new Point3d(200, 200, 0);
    using (var line = new Line(p0, p1) {ColorIndex = 2, LineWeight = LineWeight.LineWeight000})
    {
        view.Add(line);
    }
    view.ZoomExtents(p0, p1);
    device.Update();
    using (Bitmap bitmap = view.GetSnapshot(new Rectangle(0, 0, 800, 600)))
    {
        bitmap.Save(@"C:\Temp\1.png");
    }
}